The radius of circle made by meeting the plane `x + 2y + 2z + 7 = 0` to the sphere `x^2 + y ^2 + z ^2 + 2x- 2y - 4z -1

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Q 2456834774.     The radius of circle made by meeting the plane
`x + 2y + 2z + 7 = 0` to the sphere
`x^2 + y ^2 + z ^2 + 2x- 2y - 4z -19 = 0` is
UPSEE 2010
A

`5`

B

`4`

C

`3`

D

None of these

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Solution
(Provided By a Student and Checked/Corrected by EXXAMM.com Team)

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